baber/WOPTO huggingface dataset:
Patent KR-890003409-B1 (KR)
Title: Process and apparatus for the continuous electrolytic treatment of a metal strip using horizontal electrodes
Inventor: SAKAI KANGO
IPC: C25D17/12
Filed: 1983-02-10
Granted: 1989-09-20
Abstract: Metal strip is continuously electrolytically treated by passing it horizontally through the narrow space between a pair of horizontal electrodes, each containing a static pressure liquid pad provided with a slit nozzle for ejecting a stream of electrolyte towards the strip at a static pressure sufficient to support the strip. Additional electrolyte streams are ejected towards the strip surface by additional slit nozzles at the entrance and exit ends of the electrolyte streams are confined in the spaces between the electrodes and the strip.
Patent KR-860002213-B1 (KR)
Title: Loop transmission system
Inventor: DAKEYAMA AKIRA
IPC: H04B1/74
Filed: 1983-08-24
Granted: 1986-12-31
Abstract: The system has a number of node stations (NDA to ND-D), a supervisory station (SV) and duplicate loop transmission lines (TL1,TL2) which transmit signals in opposite directions. An arrangement in the supervisory station feeds loop back commands to both of the duplicate loop transmission lines when faults are detected on both lines at the same time, and subsequently feeds release commands to both lines. An arrangement in each of the mode stations establishes a loop back path while retaining a connection path to a succeeding node station on receipt of a loop-back command. The loop-back paths are formed very rapidly when a fault is detected on both transmission lines.
Patent KR-920004476-B1 (KR)
Inventor: SANO YOSHIYUKI
IPC: H01G9/10
Filed: 1984-05-25
Granted: 1992-06-05
Abstract: 내용 없음.
Patent KR-930000510-B1 (KR)
Title: Pollution detection apparatus
Inventor: COLE MARTIN T
IPC: G01J1/42
Filed: 1984-10-20
Granted: 1993-01-21
Abstract: There is disclosed a control device for use with a light sensing air pollution detection apparatus including an amplifier having pulse amplifiers producing an output pulse of high amplitude, an active peak-detector of high accuracy and linearity over a wide range an an active sample-and-hold circuit associated with a summing amplifier or a microprocessor for detecting and storing the peak amplitude of the pulse, said apparatus adapted to receive and amplify signals received from a solid-state photo-cell to subjected to a flashing light source, the control device including current measuring apparatus such as a moving-coil meter or an LED segmented bargraph display to indicate air pollution and programming pins for tapping off each individual bargraph segment to achieve plural preset alarm thresholds. The flashing light source is monitored to compensate or adjust for variations in flash intensity the signal from the monitor circuit and the detector circuit being subjected to a divider circuit.
Patent KR-910004659-B1 (KR)
Inventor: MARZOCCO ALESSANDRO
IPC: B61F5/16
Filed: 1985-02-14
Granted: 1991-07-09
Abstract: 내용 없음.
Patent KR-930005370-B1 (KR)
Inventor: SHIONOYA TOSHIO
IPC: G09G3/28
Filed: 1985-04-25
Granted: 1993-06-19
Abstract: 내용 없음.
Patent KR-900002575-B1 (KR)
Title: Blast material for mechanical plating and continous mechanical plating using the same
Inventor: OMORI SIGERU
IPC: C22C18/00
Filed: 1985-07-29
Granted: 1990-04-20
Abstract: A continuous mechanical plating process comprises projecting a blast material onto the surface which consist of a mixture of 60-90 wt.% of steel shot and 10-43 wt.% of a coating alloy powder comprising 2.5-50 wt.% of Fe, a max. of 5 wt.% of at least one of Al, Cu, Sn, Mg and Si, the balance being Zn and inevitable impurities.  The coating alloy powder has an average hardness of 140-450 Hv.  The blast material is projected repeatedly, and a magnetic separation step is interposed in the course of repetition of the projecting.  Fine iron powder produced during blasting is removed from the mixture.
Patent KR-870002151-B1 (KR)
Inventor: YUN BYONG-HO
IPC: H01H73/06
Filed: 1985-07-31
Granted: 1987-12-12
Abstract: 내용 없음.
Patent KR-900006773-B1 (KR)
Title: Position detecting method
Inventor: KOMEYAMA YOSHIHIRO
IPC: G03F9/00
Filed: 1985-10-23
Granted: 1990-09-21
Abstract: A projection aligner for a radiation exposure-lithographic system, comprising means for detecting the relative displacement between a mask (43) and a wafer (41) having an optical system comprising an optical illumination system (48) and a detection system (60) detecting the position of alignement patterns on said mask (43) and said wafer (41), respectively, and for aligning said mask and wafer in accordance with the detected signals to eliminate said displacement characterised in that said optical system (48,60) is arranged otuside the space being flooded by the exposure radiation beam of the lithorgraphic system, its illumination light optical axis (56) and its detection light optical axis (68) being inclined with respect to a normal (55) of the surface planes of said mask and wafer respectively.
Patent KR-950002027-B1 (KR)
Inventor: LANGER HANS J
IPC: H01H13/18
Filed: 1986-11-03
Granted: 1995-03-08
Abstract: 내용없음.
Patent KR-910000115-B1 (KR)
Inventor: SAITO DAMIO
IPC: H01L27/146
Filed: 1986-12-24
Granted: 1991-01-21
Abstract: 내용 없음.
Patent KR-900008461-B1 (KR)
Inventor: TOPUCHU TIMOTHY A
IPC: C08G18/65
Filed: 1987-01-17
Granted: 1990-11-22
Abstract: 내용 없음.
Patent KR-900004406-B1 (KR)
Title: A work book of language study
Inventor: KIM DONG-RYOL
IPC: G09B19/06
Filed: 1987-03-02
Granted: 1990-06-25
Abstract: The sutdy book presents an improved way of explanation for words by marking the entry word at its upper bront with a respective symbol representing one of the genders e.g. male, female and neutral and by printing the word in different colors and type forms corresponding to repective genders. The distictive symbols, colors and type forms enable for a student to easily discriminate words and enhance the effect of memorizing.
Patent KR-960007518-B1 (KR)
Title: Chiral aryl-2,3-epoxy-ether and its corresponding thio compound and their use as dopants in liquid crystalline
Inventor: HEMMERLING WOLFGANG
IPC: C07D405/12
Filed: 1987-10-05
Granted: 1996-06-05
Abstract: The novel compounds are aryl-2,3-epoxyalkyl ethers or thioethers or the corresponding thiirane compounds having a mesogenic aromatic component and a chiral component having a three-membered heterocyclic ring, wherein, in the general formula (1),    <IMAGE>  (I)  the symbols have the following meaning: R1=straight-chain or branched (C1-C12) alkyl, where one or two non-neighboring CH2 groups may be replaced by O or S atoms. A=diazine-2,5-diyl or diazine-3,6-diyl, X and Y=O and/or S, and R2, R3 and R4, independently of one another=H, straight-chain (C1-C10) alkyl or branched (C3-C10) alkyl, where R2, R3 and R4 are not simultaneously H. The compounds are preferably employed in tilted smectic liquid-crystal phases which they convert into ferroelectric liquid-crystal phases; they have high values for spontaneous polarization or they induce high values for spontaneous polarization.
Patent KR-960003741-B1 (KR)
Inventor: TETSU KITAMI
IPC: F16L11/08
Filed: 1987-11-12
Granted: 1996-03-21
Abstract: 내용 없음.
Patent KR-910002117-B1 (KR)
Title: System for supplying fuel for marine generating diesel engine
Inventor: RYU WON-JUN
IPC: F02B69/02
Filed: 1987-11-13
Granted: 1991-04-04
Abstract: The fuel feeding system is used for  mixing  diesel  oil  and low- grade oil and feeding the mixed oil into the diesel engine for ship- board power generation. The system comprises a part  (1)  for mixing two kinds of oil, e.g. diesel  oil  and  low-grade  oil,  a chamber (2) for storing the mixed fuel at a regulated quantity,  a part (3) for letting out the fuel at a regular  pressure,  a  part (4) for controlling the viscosity of the fuel  by  heating  it,  a control panel (6) for controlling all the processes of feeding the fuel and a part (5) for automatically feeding diesel  oil  from  a tank (9) to the diesel engine (7) in the case of failures  in  the above equipments.
Patent KR-960006640-B1 (KR)
Inventor: MURAKAMI YOSHIKAZ
IPC: H01P1/218
Filed: 1987-11-27
Granted: 1996-05-22
Abstract: 내용없음
Patent KR-900008304-B1 (KR)
Title: Printer for printing data automatically in computer system
Inventor: OH SUNG-TAEK
IPC: G06K15/00
Filed: 1988-01-22
Granted: 1990-11-12
Abstract: A printer for a computer system includes a data receiving circuit (2) , a main CPU, a driver (9) for driving motors (10,11) and a dot head (12), a printing apparatus (13), a control circuit (7) for providing a control signal to the main CPU, a timer, equipped in the control circuit and connected to the main CPU, for generating a data signal, and a dip switch section (3) for setting the timer with a corresponding date.
Patent KR-910000149-B1 (KR)
Title: Automatic and manual generating circuit of music number for digital audio tape recorder
Inventor: PARK CHONG-ON
IPC: G11B27/00
Filed: 1988-01-30
Granted: 1991-01-21
Abstract: The circuit includes an and gate  (AD1)  for  controlling  an analog switch (SW4) according to selection of switches  (SW1-SW3), an amplifier (10) for amplifying analog  signal  from  the  switch (SW4) , a full wave rectifier (11) for rectifying output signal  of the amplifier, an integrator (13) for integrating output signal of the rectifier a detector (13) for detecting  existance  of  analog signal by  discriminating  output  signal  of  the  integrator,  a control unit  (14)  for  generating  music  number  automatically according to the signal from the detector  (13),  a  control  unit (15) for generating music number manufally according to  selection of switches, a counter reset unit (16) for controlling the control unit (14) according to output signal of the AND gate.
Patent KR-950015053-B1 (KR)
Inventor: WOODARD JOHN THOMAS
IPC: A61K47/34
Filed: 1988-02-03
Granted: 1995-12-21
Abstract: [발명의 명칭] 
     내용 없음.
Patent KR-900005690-B1 (KR)
Title: Apparatus for and process for making spun sugar
Inventor: YUN YOUNG-JOO
IPC: A23G3/02
Filed: 1988-02-08
Granted: 1990-08-06
Abstract: The process includes supplying raw sugar to sugar fiber blowing machine, continuously blowing and transfering sugar fiber, pressing and cutting, finally making concentrated spun sugar. The process consists of blowing process for sugar fiber (B) via nozzle (24) in blowing head (20); collecting process of (B) in raw sugar collecting chamber (61); concentrating process through dropping it on conveyor belt (50); forming process for concentrated semiproducts (C) by width forming gudie (56), pressure roller (59); cutting process of semi- products (D,E); correcting process of transformed parts; arranging process of (E); supplying process for packinging.
Patent KR-920005983-B1 (KR)
Inventor: ADACHI TAKESHI
IPC: H04N5/44
Filed: 1988-03-31
Granted: 1992-07-25
Abstract: 내용 없음.
Patent KR-950014419-B1 (KR)
Inventor: PATERSON ROBERT WILLIAM
IPC: B64C23/00
Filed: 1988-06-15
Granted: 1995-11-27
Abstract: 내용 없음.
Patent KR-970000596-B1 (KR)
Title: In vitro embryo culture technique
Inventor: PERRY MARGARET MARY
IPC: A01K67/02
Filed: 1988-06-18
Granted: 1997-01-14
Abstract: Avian embryos may be cultured in vitro up to blastoderm formation, during embryonic morphogenesis and/or during embryonic growth to hatch. The invention may have applications not only in the genetic engineering of poultry, but also in the investigation of fundamental mechanisms of avian development and in the study of deleterious traits. Moreover, it may afford a desirable alternative to surgical intervention in the laying hen.
Patent KR-970011923-B1 (KR)
Inventor: CALVERT RODNEY K
IPC: B65B17/02
Filed: 1988-12-19
Granted: 1997-07-18
Abstract: 없음.
Patent KR-940002579-B1 (KR)
Title: Tray transferring device of compack disk deck
Inventor: KIM JONG-TAE
IPC: G11B17/04
Filed: 1989-01-04
Granted: 1994-03-25
Abstract: The apparatus for pulling in/out the tray precisely comprises a driving motor (4) with a turn table (3), a geared motor (6) with a pinion gear (5) a transferring bar (7') mounting a lift (13') having a guide groove (12'), a push bar (14) placed in front of the transferring bar (7), an actuator bar (16) rotating around the center (5), a projector (17) inserted into the guide grooves (12,12') of the lifts (13,13'), a rack gear (18) geared to a tray transferring gear (9) when the tray is lifted up.
Patent KR-950012686-B1 (KR)
Inventor: LUCKENBACH ROY
IPC: D06M101/16
Filed: 1989-02-01
Granted: 1995-10-20
Abstract: 내용 없음.
Patent KR-970006836-B1 (KR)
Inventor: TAKENAKA SENJI
IPC: B01D53/14
Filed: 1989-02-27
Granted: 1997-04-30
Abstract: 내용없음.
Patent KR-940004547-B1 (KR)
Inventor: IRIE YASUTAKA
IPC: F01M11/10
Filed: 1989-03-23
Granted: 1994-05-25
Abstract: 내용 없음
Patent KR-920001712-B1 (KR)
Inventor: SAKAMURA YASHIRO
IPC: F21V14/04
Filed: 1989-05-06
Granted: 1992-02-24
Abstract: 내용 없음.
Patent KR-0140086-B1 (KR)
Title: Improved coextrudable adhesive for polystyrene, and products therefrom
Inventor: LEE I-HWA
IPC: C08L51/00
Filed: 1989-06-02
Granted: 1998-07-01
Abstract: A blend of ethylene vinyl acetate copolymer, ethylene vinyl acetate copolymer modified by grafting with a comonomer containing pendant acid or acid derivative functionality, and impact-modified polystyrene provides a useful adhesive, particularly for bonding polystyrene to gas barrier polymers.
Patent KR-0165531-B1 (KR)
Inventor: FLYNN STEPHEN J
IPC: H01P1/10
Filed: 1989-07-07
Granted: 1999-02-01
Abstract: 내용 없음.
Patent KR-0149006-B1 (KR)
Inventor: AGNES GIOVANNI
IPC: B01J31/22
Filed: 1989-09-30
Granted: 1998-10-15
Abstract: 내용 없음
Patent KR-0165103-B1 (KR)
Inventor: ARIE VAN ZON
IPC: C08F257/00
Filed: 1989-12-19
Granted: 1999-03-20
Abstract: 내용없음.
Patent KR-970001264-B1 (KR)
Inventor: NAKASHIMA MASAZUMI
IPC: F27D21/02
Filed: 1988-05-12
Granted: 1997-02-04
Abstract: 내용없음
Patent KR-960015297-B1 (KR)
Inventor: KAMIGUCHI MASAO
IPC: B29C45/76
Filed: 1988-07-15
Granted: 1996-11-07
Abstract: 내용없음.
Patent KR-950007182-B1 (KR)
Inventor: BISHOP ARTHUR E
IPC: C21D9/06
Filed: 1988-08-11
Granted: 1995-07-03
Abstract: 내용 없음.
Patent KR-960015540-B1 (KR)
Inventor: BERNERON ROGER
IPC: C23C8/36
Filed: 1989-04-18
Granted: 1996-11-18
Abstract: 내용 없음
Patent KR-940005011-B1 (KR)
Inventor: KITAMURA MASARU
IPC: C07D201/04
Filed: 1990-01-24
Granted: 1994-06-09
Abstract: 내용 없음.
Patent KR-920007105-B1 (KR)
Title: A spinning nozzle for sea-island type conjugated fiber and producing process of super fine filaments
Inventor: PARK SONG-KYUN
IPC: D01D5/34
Filed: 1990-02-03
Granted: 1992-08-24
Abstract: preparing method of  sea-island  type  composite  ultra-fine synthetic fiber is characterized. Spinning two polymers of regular polyester as a island component and modified polyester or  nylon-6 as a sea component and whose ratio of melt viscosity  (island/sea) is 1.5-3.0 using spinning apparatus for sea-island composite fiber which satisfies the equations of 0 < S1/S2 < 0.3, 0.8  <  S2/D2  < 1.2 and 0.2 < D1/D2 < 0.8 ; S1= gap between  distribution  pin  and converging hole; S2= gap between distribution plate and collecting plate;  D1= diameter  of  distribution  pin;  D2=   diameter   of converging hole!. The resulting fibers are  woven  or  knitted  to form fabrics from which sea components  are  extracted  by  either alkali treatment or treatment with  mixture  solution  of  calcium chloride and  methanol,  making  them  suitable  for  use  as   a aritificial leather or high functional materials.
Patent KR-930000568-B1 (KR)
Inventor: BRANDENSTEIN MANFRED
IPC: F16H7/12
Filed: 1990-02-21
Granted: 1993-01-25
Abstract: 내용 없음.
Patent KR-0168429-B1 (KR)
Inventor: GUPTA PRAMO
IPC: C08G65/30
Filed: 1990-03-09
Granted: 1999-03-20
Abstract: 내용 없음
Patent KR-0160516-B1 (KR)
Inventor: ADLON DANIEL TODD
IPC: H01R43/00
Filed: 1990-03-21
Granted: 1998-12-15
Abstract: 내용 없음.
Patent KR-930000909-B1 (KR)
Title: Manufacturing method of lightly doped drain
Inventor: JONG WON-YONG
IPC: H01L21/22
Filed: 1990-03-26
Granted: 1993-02-11
Abstract: A  method  for  manufacturing  LDD  comprises  (a)  defining isolation region and active region on the first conductive silicon wafer (1), (b) forming gate oxide film (2) and polysilicon on  the front surface and forming gate (3) by  etching,  (c)  coating  the front  surface  with  photo  resist  and  exposing  slantwise  and developing side  wall  of  (3),  and  (d)  implanting  the  second conductive ions into the front surface, followed by heat treating.
Patent KR-940000242-B1 (KR)
Title: Servo-mechanism control device for swing-motor and boom of excavator
Inventor: LEE JIN-HAN
IPC: E02F9/20
Filed: 1990-04-07
Granted: 1994-01-12
Abstract: The apparatus including an oil hydraulic motor for swinging a scooping device of the excavator, a boom cylinder for actuating the boom rising of the scooping device, and direction control valves, is formed such that two direction control valves are connected to a three-directional valve via check valves, and an operational switch is connected to the solenoid valve, by which, when the operational switch is turned off while boom rising and swinging the scooping device, swinging initiating oil is partially mixed with boom rising oil by the three-directional valve in a first mixing ratio to operate the oil hydraulic motor and boom cylinder for making the speed ratio between boom rising speed and swinging speed to be a first speed rate, and when the operational switch is turned on, the swinging initiating oil is partially mixed with boom rising oil by the three-direction valve in a second mixing ratio to operate the oil hydraulic motor and boom cylinder.
Patent KR-920007184-B1 (KR)
Title: Anti-charge film
Inventor: SON CHANG-MIN
IPC: H01J29/88
Filed: 1990-05-14
Granted: 1992-08-27
Abstract: An anti-electrostatic film is composed of colorant-containing layer (1), which has a main component of  alkyl  silicate  and  is coated on transparent glass  or  synthetic  resin  substrate,  and protecting layer (2), which has a main component of alkyl silicate and is formed on the top of (1). Refraction indexes of (1) and (2) are different from each other. At least one compound  chosen  from metal silicate, metal alkoxide, or salts or organic derivatives of Sn, Sb and In is included in the composition to form  one  of  the layers (1,2).
Patent KR-920008160-B1 (KR)
Title: Anticarcinogenic composition
Inventor: YUN TAEK-KU
IPC: C07D309/40
Filed: 1990-06-01
Granted: 1992-09-24
Abstract: A  drug  formulation   for   preventing   cancers   contains 3- hydroxy-2-methyl-4- pyrone derivatives  of  formula  (I)  as  an active  ingredient   and   another   pharmaceutically   acceptable ingredients as an auxiliary agent. In the formula (I), A=H or C1-5 lower fatty acid residues. Pref. the drug formulation is  capsule, soft  capsule,  tablet,  liquid  solution,  injection  or  powder. 3- Hydroxy-2-methyl-  4-pyrone  (malthol)   derivs.   re   obtained fromginseng extracts.
Patent KR-930003722-B1 (KR)
Inventor: TAKASHIMA TOKUHEI
IPC: G06F1/18
Filed: 1990-06-15
Granted: 1993-05-08
Abstract: 내용 없음.
Patent KR-0142565-B1 (KR)
Inventor: IMAIZUMI EIKI
IPC: H03K5/08
Filed: 1990-08-27
Granted: 1998-08-17
Abstract: 내용 없음
Patent KR-940001836-B1 (KR)
Title: Digital video system
Inventor: LEE JONG-HAENG
IPC: H04N7/22
Filed: 1990-10-25
Granted: 1994-03-09
Abstract: The optical signal transmitter transmits an NTSC television signal. The optial transmitter comprises a transmitter (100) for transmitting a digital optical signal, a receiver (200) for reconstructing the NTSC television signal from a digital optical signal transmitted from the transmitter, and a relay (19) for relaying the digital optical signal transmitted from the transmitter to the receiver. A synchronous signal and front porch in the NTSC television signal are replaced by a preset data. The preset data is reformed to make the digital optical signal. The preset data received by the receiver is reconstructed to the horizontal synchronous signal and front porch.
Patent KR-920008303-B1 (KR)
Title: A method of coating of filament
Inventor: CHOE KYONG-SOK
IPC: H01J9/04
Filed: 1990-11-02
Granted: 1992-09-26
Abstract: The method coats the filament, particularly for a fluorescent display board, with the carbonate emitting  electrons  if  heated. The coating method comprises passing tungsten  wire,  fed  from  a supply roller (3), through a tank (6) filled  with  the  liquefied carbonate; drying the carbonate-coated tungsten wire with a heater (7); drawing the dryed tungsten wire on a roller (4). The tungsten wire longitudinally rotates by arranging  the  two  roller  shafts (3,4) at a right angle, so  that  the  coating  thickness  can  be regulated. The coating method prevents a partial  overload  and  a disconnection of the filament.
Patent KR-0157327-B1 (KR)
Inventor: HAINES DINA MARIE
IPC: D04H1/72
Filed: 1991-02-26
Granted: 1998-12-01
Abstract: 아라미드 펄프를 와류-공기 연마기(turbulent air grinding mill)의 작용하에서 개면시킨 후, 개면된 펄프를 선적용으로 바람직한 정도로 압축시킴을 특징으로하여, 압축된 재분산성 아라미드 펄프 섬유 제품을 제조하는 방법에 대해 나타내었다.
Patent KR-0157061-B1 (KR)
Inventor: HIRANE HIDEO
IPC: B41J2/455
Filed: 1991-03-14
Granted: 1999-03-30
Abstract: 발광 어레이 유니트의 각 발광 소자가 정상적으로 발광하는지의 여부를 진단하기 위한 발광 어레이 진단장치는 모든 발광소자가 발광할 때까지, 그룹으로 분류된 각 복수의 발광어레이 유니트 그룹의 발광소자중 최소한 하나로부터의 순차적인 동시 발광을 하도록 하기 위한 진단 데이터를 공급하는 진단 데이터 발생기를 포함한다. 각 발광소자의 광출력이 수광되고 광 전기적으로 광검출 유니트에 의해 변환된다. 그리고 광검출기 유니트에 접속되고 가산기와 비교기를 구비하는 진단유니트는 각 발광소자의 루미네센스 상태를 진단한다.
Patent KR-970005173-B1 (KR)
Title: Use of 15-dehydroxy-16-oxoprostaglandin derivatives in the treatment of allergic diseases
Inventor: UENO RYUJI
IPC: A61P43/00
Filed: 1991-04-27
Granted: 1997-04-14
Abstract: A use of a 15-dehydroxy-16-oxoprostaglandin compound for the manufacture of a medicament for treatment of an allergic disease.
Patent KR-100203458-B1 (KR)
Title: Method for removing liquid from amixture of liquid and solid matter
Inventor: PRINSSEN ALPHONS A J A
IPC: B01D33/044
Filed: 1991-05-20
Granted: 1999-06-15
Abstract: The invention relates to a method for removing liquid from a mixture of liquid and solid matter. Said mixture is led over one or more casings by means of a conveyor belt which is pervious to liquid. In use a sub-atmospheric pressure is generated in the casings during a first period, in which said casing(s) and said conveyor belt are stationary with respect to each other, whilst at the same time a pressure is exerted on the mixture by means of rollers. During a period following on said first period a relative movement takes place between the conveyor belt and the casing(s), whilst during this period no sub-atmospheric pressure is exerted in the casings and no compressive force is exerted on the mixture by means of the rollers. <IMAGE>
Patent KR-940006964-B1 (KR)
Title: Arrangement for speed regulation of electric motor
Inventor: KIM DONG-IL
Filed: 1991-08-17
Granted: 1994-07-30
Abstract: The apparatus for controlling speed of an induction motor comprises an induction motor, a microprocessor, a first analog-to-digital (A/D) converter for converting a normal speed command value to digital data, an encoder for sensing the current speed of the induction motor, a hall sensor for sensing 2-phase current, a current operator for performing the operation of the 1-phase current, a second A/D converter connected to the current operator, a D/A converter, a current controller, a comparator for comparing the control value of the current controller with a triangular wave, a pulse width modulating signal distributor for distributing pulse width modulating signal, a low-pass filter for passing only a low frequency band of the distributed pulse width modulating signal, a third A/D converter, and an inverter for supplying the 3-phase current to the induction motor, thereby maintaining a normal speed.
Patent KR-100187312-B1 (KR)
Inventor: WALLQUIST OLOF
IPC: C09B1/516
Filed: 1991-09-19
Granted: 1999-05-15
Abstract: 본 발명은 장쇄의 아실아미노를 함유하는 하기 일반식(I) 또는 (II)의 안트라퀴논에 관한 것이다. 
     
       
     
     상기식에서, 예컨대 R은 헵타데실이고, R 1 은 페닐이고, R 7 과 R 9 는 -NHCOC 17 H 35 이며, R 8 과 R 10 은 -OH이고, 1과 m은 각기 0이다. 
     이러한 안트라퀴논 유도체는 플라스틱 재료, 특히 폴리올레핀의 원료착색용으로 특히 적합하다. 이들 안트라퀴논류는 플라스틱  재료에  매우 용이하게 분산될 수 있으며, 착색된 제품은 탁월한 내광견뢰성, 내후견뢰도 및 내열견뢰도를 갖는다.